TWO IMPORTANT ANNOUNCEMENTS

 

We have moved! Our new location is just one floor down, Suite 340 of the St. Vincent East Pavilion.

Regarding COVID-19:

The clinic is open for both medical and vision appointments. Our optical shop is open by appointment as well. Please give us a call to schedule.

For your safety and that of our community, please note the changes to the hospital and clinic.

  • If you are not well or have been sick in the past week, please call so we can triage any ocular symptoms and reschedule your appt.
  • Please arrive no more than 10 mins before your appt. If you arrive early, you may be asked to wait in your car, as we do not have waiting area seating.
  • Your temperature will be taken when you enter the hospital.
  • Please bring only one attendant, ages 16+ years old.
  • Bring and wear a mask (both patient and attendant) while in the hospital and clinics.

How to Decipher Your Eyeglass Prescription

OK, you just had your eye exam at our new location in Suite 340 of the St. Vincent East Pavilion and now you have a prescription for eyeglasses. Of course, your best bet would be to take it right over to our optical shop right in our office where we have all the latest frames, one sure to be perfect for both your eyes and your style.

Beyond filling the prescription, most people wonder just what all of the different numbers on their prescription mean.

Well, let’s get into that.

Your prescription

OK, let’s say you just completed your exam and Dr. Wilkins or Dr. Donohue has given you the above eyeglass prescription. Let’s break it down.

  • OD = Your right eye parameters
  • OS = Your left eye parameters

Sphere

This indicates the amount of lens power prescribed for nearsightedness or farsightedness, measured in diopters. This is basically the strength of magnification needed to get your eyes to 20/20. If your number has a minus sign (-) you’re nearsighted; if it has a plus sign (+) you’re farsighted.

Cylinder & Axis

These are your astigmatism numbers. A Cylinder and Axis is required to correct your astigmatism. This is a little complicated, using meridians of the eye, degrees, and such. Remember that if you have astigmatism, the shape of your cornea is more oblong (think football) than the normal round shape. This creates refractive errors all over your eye. Just know that these two numbers correct for those errors. Again, a minus sign indicates correction for nearsighted astigmatism, and a plus sign corrects for farsighted astigmatism.

Add

This is the added magnifying power applied to the bottom part of multifocal lenses to correct for presbyopia. The number appearing in this section of the prescription is always a “plus” power. This is used for reading glasses, progressive lenses, and bifocals. The number is the same for both eyes.

Prism

A prism number indicates the amount of prismatic power, measured in diopters, needed to compensate for any alignment problems in your eyes. Not many eyeglass prescriptions have a prism number.

Pupillary Distance (PD)

PD is the distance between the center of one pupil (the central black dot of your eye) to the center of the other pupil, measured in millimeters.

Now you’re an eyeglass prescription expert. So, is it time to come see us at The Eye Clinic for your next eye exam (and maybe a new prescription)? Call us at (503) 297-4718 to make your appointment.

Posted in: Optical Shop

Leave a response

We Are Here For You

  • * All indicated fields must be completed.
    Please include non-medical questions and correspondence only.
  • This field is for validation purposes and should be left unchanged.
St. Vincent: 503.297.4718


Call Now Button